I recently got an opportunity to get this lens for $180, so I figured I would research it to the best of my abilities.
So far it seems to be quite the rare lens that doesn't surface too much, and I haven't seen one for sale for anywhere else so I am unsure of the price range of this lens.
Could anyone give me their opinion on the lens and let me know if its worth $180? It's the Sigma 400 f5.6 APO (non macro version with 72mm filter thread)
It looks like it might be a fun cheap telephoto for birding with it wide open (supposedly gives error 99s if you try and stop down on newer bodies)
Let me know what you guys think!